1.[Additional security door lock] Our travel door lock is upgraded with better performance and durability. Made of heavy-duty stainless steel with the anti-rust features, sturdy and thicker than other similar door locks. Ensure more security to your room and prevent unauthorized entry with lock door from inside. 2.[ door locks] hotel door jammer is compact and portable, small enough to carry in pocket or handbag, very suitable door lock for travel. It's small but will perfectly hold your door shut firmly. gives you a lot of peace of mind when you are home alone or traveling. Prevent the sudden Come of strangers. Door security lock for self-defense, add a sense of security, peace of mind sleeping. A must-have for security on vacation. 3.[Easy to install] lock installs in seconds without any tools required. No need to nail or screw into anything, just put the metal part of the door security device goes into the hole on the door jam then close the door, and press the button into the lock in place. 4.[Fits More Types Of Doors ] When you are traveling or living alone, door security locks will help you keep hotel . You need only lock the door from inside with this portable door lock in the hotel. lock for door works in hotels, motels, apartments, homes, short term rental, bathrooms, bedrooms and can lock most types of doors sturdily.